Machine for making air-hole glassware.



PATBNTED JAN. 23, 1906.

- I. H. BLACKBURN. l yIVIAHINE I'OR MAKING AIR HOLE GLASSWARE.

APPLICATION IILBD FEB. 24. 1905.

miento?? Il i ' mmm-@ein irnn sfrn'rns Parenti FRANK H. BLACKBURN, OF FCSTORiA, CHM), ASSGNOR TO THE Nn'ilONAL ELECTRIC LAMP COMPANY. F CLE'i/El/NT). CHIC A RDE'N OF NEW' JERSEY.

Specification of Letters Fatent.

Patented Een'. 23 GGG.

Application led Februar; 24, 1905. Serial No, 247,161..

To H/Z/f L11/wm, t 'Imag concern:

Beit known that I, FRANK H. BLACKBURN,

a citizen ol' the United States, residing at Fosteria, in the count)r of Seneca and Ltate of Ohio, have invented a certainlnew and useful Improvement in Machines for Making AirlIole Glassware, of which the following is a` full, clear, and exact description, reference being had to the accompanying drawings.

The object kof this invention is to provide a simple rapidly-operating machine for mal;- ing the holes in air-hole glassware. In such ware, which is used on lrVelsbach lights and other places, it is customary to have a. nu'm- 15 ber of air-holes made into an annular' bead,

which is formed near the base ol the globe.

Heretofore these holes have been made one at a time by hand by heating the spot ou the bead Where the hole is to be and then touch- 2o ing to it the end of a heated iron or glass rod, to which the glass adheres and which is then drawn away from the globe to malte an attenuated conical projection or horn, which is then broken olll to leave the hole.

My machine mechanically draws out the horns from the globe to make all of the holes at once. The invention comprises, broadly, the combination oi' means tor holding the globe and mechanism for engaging it at va rious heated points and then drawing away to form the horns. The more particular' embodiment ol" the invention herein shown and hereinafter more l'ully explained is also comH prised within my invention.

ln the drawings, Figure l is a plan ol' my machine. Fig. 2 is a. vertical section theree oli. Eig. 3 is a perspective View oi air-hole glassware as produced by the machine.

ltel'eilng to 'the parts by letters, A repre- 40 sents a suitable bed-plate, from the center oi Which rises a tubular standard l. ln the upper end ol' this standard rests the glassware to be treated, (indicated by Z.) Secured to the standard is a dislf; C, having al. 4S its edge an upwa:altr-inclined flange c. livoted in slots i'ormed through the standard l and the hub c" olA llul disli are a. series ol levers l). 'there are as many ol' these levers as there are holes to be made in the glassware e six, l'or example.

of each lover is a curved rod ll, the upper end ol'l which normally liesI in a hole in the disli C.

coiledV spring X.

Sei-unal to tln` outer Iend t The reds E are of such length that when they are moved inte their uppermost posi tion their ends strike the sides oi the globe, as ind' rated by dotted lines in. liiglf. To so move them, ipro ide within the'siandard B a rod F, haring a pair ol" eoilars'f andj, hetween which taire the inner ends ot 'the levers D. rthe lower end of the rod F is connected to a lever G, which will be operated in snitable manner, as by a troadle, (not shown,`) connected with vthe lever by a lint; G. A spring'lzl serves to keep the rod F eleraiei'l, and hence the rods E depressed.

J represents air-nozzles pointing toward the globe and K. gas-burners beneath the air-y nozzles and across which the air blows, directing each .llame in a point against the glassware on the spot which th y upper end of the rod E is adapted to slrilie.

rilhe rods E should be heated bel'ore they strike the globe, and to accomplish this i cause the rods when the treadle is depressed to pause with the upper ends in the path of the llames, alter which a completion ol the depression of the lreadle moves the rods to To cause the nfmporary` impinge the globe. cessation oll the movement ol the rods, Ipro Vido a bar li, secured lo the le\'e1'(l and playing idly through tlu tramo A and through a when the upper end oi' the bar strikes the spring, the operator l'eels the increased resistance and stops depressi! g `he treadle. '.ihen al'ter the ends ol' the rods i@ have become heated the dfgruession is rompieied.

As the the glass heated rodl impingo on the g' abe adheres to their ends.l 'then treadle is released, and up rod l", draws down the rods ll. ln this movement oai-h rod IC draws a horn out oi the globe. 'these horns are so thin that a slight blow shatters them, and the globe is lol't with the holes in it, needing only grinding and glazing to complete them.

'lhe upper ends ol' rodsl lf as they return to normal position rei-odo slightv into the holes in the llangc C, and this clears them from whatever giass is sticking to them.

l. ln a machine lor making air-hole glassware, the combination o1' means lor holding the material, means for heating it in snots,

the spring ii, toremg d plurality of rods placed about the axis of the support and adapted to engage the globe at several points, means for heating the globe,

vmeans [lor simultaneously moving said rods toward the globe to strike it at the heated s ots without puncturing the glass and forl t en retracting the rods with the glass clinging thereto.

. 4:.' in a machine for making air-hole lassware, the combination of means for hol `ing a globe, means for directing aiseries of flames radially against it to heat separated spots thereon, a series of rods, and mechanism for causing them to move against the heated spots on the globe and then retreat.

A5.y in a machine for making air-hole glassware, the-combination ol a central support adapted to hold a globe, a series o'f rods arranged about the support and guided to move against the globe, means for so moving the rods and. for causing them to move away from the globe, and means for heating the globe and the ends ol the rods before they engage the globe.

6. In a machine for making air-hole glassware, the combination of a support for the globe, a serios ol gas-burners and air-jets arranged radially about thc globe, a series of rods and mechanism vfor simultaneously moving them to engage the globe at the heated spots and 'for then .inovingthem away 'from the globe to draw out horns from it.

7. In a machine For making air-hole glass rifare, the combination of a support 'for the globe, a series of heating members therefor, a series of rods, mechanism 'lor simultaneously moving them to engagel the globe at the heated spots and for then moving them away from the globe to draw out horns, and means for clearing the ends of the rods from glass tending to adhere thereto.

8. In a machine for making air-hole glass-4 ware, the combination of a lsupport for the globe, means for directing a series of flames against the globe, aseries of are-shaped members located radially of the lassware, and means for swinging said memlgwrs upward in vertical planes about the centers of their arcs to engage the glassware.

9. In a machine for making air-hole lassware, the combination of means for hol ing a globe, means for directing a series of llames radially against it, a series of rods, mechanism for causing them to move-against the heated spots on the globe and then retreat, and means for causing said rods to pause during their forward movement with their forward ends in the lameswhereby said ends become heated. v

10. In a machine for making air-hole glass-A ware, the combination of a tubular support for the globe, means for directing a series of llames against the globe, a series of levers pivotally carried by said support, a common operating-rod within said support and operatively connected with the inner ends of said levers, and rods operated by said levers and adapted to move against the globe and then away from it.

11. In a machine for making air-hole glass- FRANK H. BLACKBURN .i XWitnesses:

H. S. BLACK, F. C. MAXHEIMER. 

